Is it worth upgrading to HD radio?

PocketChange: "Radio hasn’t quite changed much for the past 80 years or so, at least in terms of technology. The only change that we saw was the introduction of Frequency Modulation (FM) in the 1960s and 70s. After such a long time, a whole new technology has been introduced and it looks like it is here to stay. HD radio promises a lot to consumers and it looks like it is going to be a success. Let us take a look at some of the advantages and see if it is worth upgrading to HD radio or not."